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Finding the Fourth Proportional to 880,732.64, 1,215,486 and 498,827.36

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Solution

The fourth proportional to 880,732.64, 1,215,486 and 498,827.36 is: 688,424.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,732.64 : 1,215,486 = 498,827.36 : x
  2. Step 2: Convert to fraction form
    880,732.64/1,215,486 = 498,827.36/x
  3. Step 3: Cross multiply
    880,732.64x = 1,215,486 × 498,827.36
  4. Step 4: Simplify right side
    880,732.64x = 606,317,672,496.96
  5. Step 5: Solve for x
    x = 606,317,672,496.96/880,732.64
  6. Step 6: Final answer
    x = 688,424.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.